Specifications

Type:Shaffer type double rams BOP;
API Spec.16A
NACE MR-01-75
High sealing reliability

Type: Tapering packing unit annular BOP and Spherical packing unit annula BOP

Bore:13 5/8'' and 21 1/4''

Working pressure:2000psi and 10000psi

Top connection:6BX BX159 CRA / 6BX R73 CRA studded

Bottom connection: 6BX BX159 CRA / 6BX R73 Flange

 

Features:

1,Tapering packing unit and spherical packing unit are separately exchangeable with HYDRIL"S and SHAFFER's;

2,The added wear-belts to the original design can prevent and improve the cylinder-grinding as unbalanced loading;

3,The fortified rings can make the whole BOP stack be lifted;